[Interaction of acetyl-CoA carboxylase from the rat liver with analogs of activated carbon dioxide and ATP]. / Vzaimodeistvie atsetil-CoA-karboksilazy pecheni krys s analogami aktivirovannoi uglekisloty i ATP.

ABSTRACT

The interaction of rat liver Ac-CoA-carboxylase with reactive and stable analogs of carbon dioxide and phosphoric acid mixed anhydrides--hypothetic intermediate of the enzyme reaction--has been studied. Carbamoylphosphate showed substrate properties, whereas phosphonacetic acid and beta-oxopropyl-alpha, alpha-diphosphonate inhibited this enzyme (Ki 3.0 and 3.5 mM correspondingly). The analog of another possible intermediate in the reaction of ATP and carbon dioxide, Appp (CH2COOH) also inhibited Ac-CoA-carboxylase (Ki = 0.7 mM).